The Ripper (RS-1) unit will bolt onto most sets of standard 7 1/4" trauma shears turning them into a virtual juggernaut! There will be no need to waste time digging through your bag to find the right tool because now you will have four tools, right in the palm of your hand. Our Ripper is made with glass infused nylon to increase its durability. We have also improved our design by adding square flanges vs the previous hexagonal version. This is a significant improvement from previous models because it helps prevent stripping and/or loss of screws. Confirmed fit on following 7 1/4 models: ADC Medicut Shears (SI135, IS0020M, IS0020N & IS0020OJ) CMS Mojo Shears Mueller Shears Note: RIPPER is not compatible with Clauss or NAAR shears Made in the USA